CS Game Scale - Manual Style

[K K Rossokolski]

I said above that I would pull out of this, a statement I now withdraw because I have for a long time had a question about game scale, and now, with a couple of scale experts to hand, is a good time to ask it.

Ed....given that you view the scale parameters in The Game Manual as on a par with Holy Writ, I should be interested in your views on the following.
I play on a laptop, almost always in 3d Zoomout view, which means the screen is about 14 hexes...lets be conservative and call that 3km wide. With for example, a P-47 airstrike, the little aeroplane zips across diagonally, maybe 2km. But lets be conservative, and call it 1 km. I have for years tried to time this, and failed to get it exactly. It is less than a second, but let's call it one. No, be conservative and call it two seconds. So conservatively in two seconds, the P-47 travels one km. Now that, at 3600 seconds in an hour, means that little sucker can go 1800 km, which conservatively gives him a top speed of >1100 mph.
Which is a good deal faster than sound, conservatively speaking.
Most sources give the "Jug" a top of around 430mph.

Perhaps you could explain this to me?